What is the pH of a solution that is 0.26 M CH3NH2 (methylamine) and 0.38 M CH3NH3Cl (methylammonium chloride)? (Assume Kw is 1.0 ✕ 10−14.)

Q: What is the pH of an aqueous solution that is 0.1M NH4Cl? The Kb value for NH3 is 1.8 x 10-5

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Q: What is the pH of a solution prepared by dissolving 1.00 g of the weak acid HA (molar mass = 138.95…

A: pH of solution can be found using the henderson-hesselbech equation.

Q: The base Ca(OH)2 is almost insoluble in water , only 0,25 g can be dissolved in 0,5 L of water at 25…

A: Base is the substance which gives hydroxide ion in the solution while acid gives proton in the…

Q: the ionization constant for HCN is 4.5 x 10^-10. what is the pH of a 0.43 molar solution of sodium…

A: PH = -log [H+]

Q: Calculate the pH of 0.400 M pyridinium bromide, C5H5NHBr. K of pyridine, C5H5N, = 1.7 x 10*" Provide…

A: Given data,Molarity of C5H5NH+=0.400MKb=1.7×10-9

Q: What is the pH of a 0.0270 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10⁻¹⁰)?

A: HCN is a weak acid , it ionizes  as follows  HCN <----> H+ + CN- Given , Concentration of HCN…

Q: 2. Calculate the pH of a solution that contains 150 mL of 0.25 M NaF and 252 ml of 0.30 M HF. K, =…

A: Given volume of HF is 252 mL and strength is 0.30 M  Given volume of NaF is 150 mL and strength is…

Q: The weak base dimethylamine, NH(CH3)2, has a molar mass of 45.09g/mol and a base-dissociation…

A: pH is used to measures the concentration of hydrogen ion. The expression for calculating the pH is…

Q: Calculate the pH of a solution that is 1.314 M HF, 0.442 M NaOH, and 0.719 M NaF. For HF K = 7.2 x…

A: Here we have NaOH which is a strong base and will completly dissociate on reacting with HF.

Q: Calculate the pH of a solution made by dissolving 1.87g of sodium caproate (NaC6H11O2) in water and…

A: We will calculate pH

Q: The acid-dissociation constant of hydrocyanic acid (HCN) at 25.0°C is 4.9 x 10 -10. What is the pH…

A: pH is used to determine the concentration of hydronium ion.

Q: 10. Calculate the pH of a 0.150M solution of sodium acetate (NaC,H,O;) at 25°C. (K, for acetic acid…

A: Given-> Concentration of sodium acetate = 0.150 M Ka (CH3COOH) = 1.8 × 10-5

Q: What is the pH of a 0.0280 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10⁻¹⁰)?

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Q: Methylamine, CH3NH2, has a Kb = 4.40 x 10-4. What is the pH of a 0.450 M  solution of methylamine?

A: Methylamine, CH3NH2 is a weak base which undergoes partial dissociation in aqueous medium. Let the…

Q: What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M methylamine. CH3NH2. with 25.00…

A: Given : Concentration of methamine i.e CH3NH2 = 0.10 M Volume of CH3NH2 solution = 25.00 mL = 0.025…

Q: 1. Calculate the pH of a 200.0-mL solution containing 0.050 M benzoic acid (C6H5COOH) and 0.025 M…

A: pH = pKa + log[C6H5COO-]/[C6H5COOH]

Q: If a buffer solution is 0.300 M in a weak acid -5, (K = 2.6 x 10) and 0.470 M in its conjugate base,…

A: The Henderson-Hasselbalch equation is given as,

Q: Benzoic acid (C6H5COOH) is a monoprotic weak acid with Ka = 6.30 x 105. What is the pH %3D of a…

A: [Benzoic acid] = 0.559 M [NaOH] = 0.0225 M

Q: When 22.6 mL of 0.229 M hydrochloric acid (HCI) and 22.6 mL of 0.229 M ammonia (NH3) are combined,…

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Q: What is the pH of a solution when 2. 75 g of ammonium chloride, NH4CI, is used to make 100 cm3 of…

A: Number of Mole-ratio of given mass of substance to the molar mass of substance is called number of…

Q: NH3 is a weak base (?b=1.8×10^5) and so the salt NH4Cl acts as a weak acid. What is the pH of a…

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Q: If you mix 100. mL of 0.11 M HCl with 50.0 mL of 0.22 M NH3, what is the pH of the resulting…

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Q: What is the pH of a solution of 0.075M HNO2 and 0.030 NaNO2?

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Q: What is the pH of a solution of 0.400 M CH,NH, containing 0.100 M CH,NH,1? (Kb of CH,NH, is 4.4 x…

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Q: What is the pH of a 0.0650 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10⁻¹⁰)?

A:

Q: The acid-dissociation constant of hydrocyanic acid (HCN) at 25.0°C is 4.9 x 10 10. What is the pH of…

A: pH of a solution is used to define acidity or basicity of the solution. At room temperature, pH of…

Q: What the pH of 0.10 M solution of methylamine (Kb for CH3NH2 is 4.4 x 10*)?

A: A numerical problem based on pH of the weak base, which is to be accomplished.

Q: What is the pH of a solution containing 6.65 g sodium acetate (NaC2H302, 82.03 g/mol) in 100.0 mL of…

A:

Q: The substance benzoic acid (C6H5COOH) is a weak acid (K₂ = 6.3x10-5). What is the pH of a 0.230 M…

A:

Q: NH3 is a weak base (?b=1.8×10−5) and so the salt NH4Cl acts as a weak acid. What is the pH of a…

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Q: a) Calculate [H3oʻ], [C2H3O2¯ ] and [HC2H3O2] for a solution prepared by mixing 35.0 mL of o.10 M…

A: The number of moles of acetic acid in 35.0 mL of 0.10 M acetic solution and the number of moles of…

Q: What is the pH of a solution formed by the combination of 50.0 mL of 0.20M NaOH and 25.0 mL of 0.40…

A: Number of moles of HCl and NaOH is calculated as follows,1 mL = 0.001 L

Q: The Ka of a weak monoprotic acid is 1.85 x 10-5. What is the pH of a 0.0761 M solution of this acid?

A: First, we have calculated the concentration of [H+] with the help of Ka and the concentration of the…

Q: HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: It is required to calculate the pH of the solution that is 0.016 M in NaClO.Ka for HClO = 4 x 10-8…

Q: What is the pH of a 0.0370 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10⁻¹⁰)?

A:

Q: What is the pH of a 0.0270 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10¬1º)?

A: Here, hydrocyanic acid is weak acid as compared to mineral acids , thus when it ionized it will form…

Q: What is the pH of a solution prepared by combining 0.258 mol of a newly discovered weak acid (Ka =…

A: Given system is buffer mixture

Q: Consider an aqueous solution of 0.40 M phenol. If you add HCl to the phenol solution until the pH…

A: Given that the acid ionization constant is 1.0×10 -10.

Q: Calculate the pH of a 0.05 M solution of hydrofluoric acid. The Ka of hydrofluoric acid is 6.6x10^-4

A: Given data, Molarity of HF=0.05MKa of HF=6.6×10-4 pH of a solution is given by -log[H+]

Q: LA solution is prepared at 25 °C that is initially 0.083 M in chloroacetic acid (HCH,CICO,), a weak…

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Q: If 10 mL of 0.1 M hypothetical acid, HA, is added with 10 mL of 0.1 M of the salt of its conjugate…

A: Answer: The mixture of acid HA and its conjugate base XA will be a buffer solution.

Q: Calculate the pH for a 0.1 M solution of C6H5COOH (K, = 6.46 x 105) and the pH for a 0.2 M %3D…

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Q: What is the theoretical pH of a 0.10 M NH4Cl solution when the Kb for NH3 is 1.8 x 10^-5?

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Q: What is the pH for 2.4 M ammonium chloride aqueous solution (ammonium hydroxide, Kb=1.8×10-5)?

A: Ammonium chloride,  NH4Cl  dissolves in solution to form ammonium ions  NH4+  which act as a weak…

Q: 10. 0.02 mole of NH,OH and 0.03 mole of NH,Cl are mixed in 300 ml, what is the pH of the solution?…

A: this solutions form a basic buffer solution.

Q: 1. What is the PH of a 0.1 molar solution of acetic acid ? To what volume must 1 liter of this…

A: The dissociation reaction taking place is  Given : initial concentration of CH3COOH = 0.1 M

Q: What is the pH of a 0.0500 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10⁻¹⁰)?

A: Given -> Molarity of HCN = 0.0500 M Ka = 4.9 × 10-10

Q: find the pH of a 0.30M solution of sodium benzoate ,NaC7H5O2.Kb for the benzoate ion C7H5O2 is 1.55…

A: The expression for the pH of a salt solution of weak base and strong acid is given as:

Q: ph of 0.10 M NaNO2 (Ka of HNO2 is 4.5 x 10-4 ?

A: Given information: 0.10 M NaNO2 Ka of HNO2 is 4.5 x 10-4

Q: what is the pH of a solution prepared by adding 78.69 mL of 0.100 M sodium hydroxide to 50.9 mL of…

A:

Q: 100 ml of 1 M CH3CO2H solution and add 4 g of NaOH. Calculate the pH of the solution?

A: Given data:

Q: Calculate the pH of a 0.400 M CH3NH3Cl solution. Kb for methylamine, CH3NH2, is 4.4 × 10-4.

A: